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| Number | Title | Issue Date |
| 6843697 | Black matrix for flat panel field emission displays A flat panel field emission device includes a black matrix formed from an electrically insulative material such as praseodymium-manganese oxide. The insulative black matrix increases image contrast and reduces power consumption. For field emission devices which util... | 01/18/2005 |
| 6054807 | Planarized base assembly and flat panel display device using the planarized base assembly A base structure for use with a flat panel field emission display device. A spacer layer is provided in the base assembly to generally planarize the base assembly prior to mechanical planarization. As a result, the base assembly is more reliable and permi... | 04/25/2000 |
| 6037104 | Methods of forming semiconductor devices and methods of forming field emission displays In one aspect the invention includes a method of forming a semiconductor device, comprising: a) forming a layer over a substrate; b) forming a plurality of openings extending into the layer; c) depositing particles on the layer; d) collecting the particle... | 03/14/2000 |
| 6022256 | Field emission display and method of making same A low temperature method of sharpening the emission tip of a field emission display includes the step of oxidizing the silicon substrate and the emission tip in an atmosphere of oxygen and ozone at temperatures below 800° C. The oxidation step forms an o... | 02/08/2000 |
| 5899799 | Method and system to increase delivery of slurry to the surface of large substrates during polishing operations Grooves are cut into an under pad of a polishing pad assembly formed by an under pad and an over pad. The grooves cause channeling of the over pad so that slurry received on the polishing face of the pad assembly is delivered across the pad assembly's sur... | 05/04/1999 |
| 5898428 | High impedance transmission line tap circuit A transmission line tap for a field emission display includes a driving circuit formed from a charging and clearing circuit and a storage circuit. In one embodiment, the charging and clearing circuit is a single transistor coupled between a supply voltage... | 04/27/1999 |
| 5894293 | Field emission display having pulsed capacitance current control A current controlled field emission display includes a pair of pulsed transistors that charge and discharge capacitance within the field emission display. The capacitance may be a separate circuit element or may be the parasitic capacitance of the integra... | 04/13/1999 |
| 5892320 | Field emission display with self-aligned grid A field emission display includes a substrate (400) having a trench (402) formed therein, an emitter (418) formed in the trench (402), a dielectric layer (412) disposed on the substrate (400), and a grid material layer (406) disposed on the dielectric lay... | 04/06/1999 |
| 5885477 | Silicon dioxide etch process which protects metal The present invention is directed to a novel etching process for a semiconductor material which inhibits corrosion of metal comprised of pretreating the material, preferably with a surfactant, and then exposing the material to a mixture comprising salt, a... | 03/23/1999 |
| 5886461 | Transparent conductor for field emission displays The present invention is directed to a conductor/electrode for a faceplate anode of a field emission display wherein said conductor/electrode is comprised of tin oxide. Alternatively, the present invention is directed to a transparent conductor/electrode ... | 03/23/1999 |
| 5880502 | Low and high voltage CMOS devices and process for fabricating same CMOS devices and process for fabricating low voltage, high voltage, or both low voltage and high voltage CMOS devices are disclosed. According to the process, p-channel stops and source/drain regions of PMOS devices are implanted into a substrate in a sin... | 03/09/1999 |
| 5871807 | Multiple level printing in a single pass A process is provided for forming a conductive line between a conductor and a spacer formed on a substrate of a field emission display. In one embodiment, the process performs the steps of disposing a screen between the substrate and a distributing member... | 02/16/1999 |
| 5867136 | Column charge coupling method and device An apparatus is provided for modulating a conductive element in an FED device from a first level to a second level in which the charge on the display is conserved. In one embodiment, the apparatus comprises an analog modulating circuit, a switching circui... | 02/02/1999 |
| 5865658 | Method for efficient positioning of a getter A FED is provided comprising: an emitter located on a cathode; a pixel located on an anode positioned to receive electrons from the emitter; and a getter located on the anode. According to another aspect of the invention, a method of making an FED is prov... | 02/02/1999 |
| 5864200 | Method for formation of a self-aligned emission grid for field emission devices and device using same According to the present invention, there is provided a method for forming an emitter grid in a substrate of a field emission display. In one embodiment of the invention, the method includes the step of forming an emitter in a trench in the substrate, the... | 01/26/1999 |
| 5857884 | Photolithographic technique of emitter tip exposure in FEDS Aligned gate structures for field emitter display devices are formed by overlaying a substrate, having at least one emitter tip thereon, successively with an insulating layer, a conductive layer, and a photoresist layer. The photoresist layer is then expo... | 01/12/1999 |
| 5856812 | Controlling pixel brightness in a field emission display using circuits for sampling and discharging A flat panel display, such as a Field Emission Display ("FED"), is disclosed having a current control circuit. Input into the display, initially, is an analog signal having an amplitude. In one embodiment, the current control circuit includes a converter ... | 01/05/1999 |
| 5854615 | Matrix addressable display with delay locked loop controller A matrix addressable display includes a delay locked loop formed from a delay chain formed from several variable delay blocks and a comparator. The delay locked loop receives a horizontal sync portion of an image signal and propagates the horizontal sync ... | 12/29/1998 |
| 5853492 | Wet chemical emitter tip treatment A wet chemical process is provided for treating an emitter formed on a substrate of a field emission display, the process comprises applying a solution including hydrogen to the emitter. In one embodiment of the invention, the steps of applying a solution... | 12/29/1998 |
| 5851133 | FED spacer fibers grown by laser drive CVD Laser-assisted chemical vapor deposition is used to form spacers at desired locations in a field emission display. The spacers can be designed with different shapes to provide increased strength and also to be formed differently depending on the their loc... | 12/22/1998 |
| 5844359 | Lightweight back plate for FED and flat CRT vacuum envelopes A process is provided for strengthening a backplate of a field emission display. In one embodiment, the process comprises, disposing a plurality of attachments on a surface of the backplate, disposing a strengthening member along the surface of the backpl... | 12/01/1998 |
| 5840201 | Method for forming spacers in flat panel displays using photo-etching Photoetchable glass is used to form spacer elements for large area field emission displays. Frit dots are placed onto a substrate. A sheet of photo etchable glass is exposed to UV light using a mask such that the UV light exposes the etchable areas and do... | 11/24/1998 |
| 5827101 | Anode for flat panel display An anode of a flat panel display besides having a glass substrate, a patterned black grille on the substrate, a conductive layer covering the grille and the substrate, and a phosphor layer covering, also has one or more additional transparent layers that ... | 10/27/1998 |
| 5827624 | Mask modification for focal plane on contact photolithography tool The lower surface of a photolithographic mask contains recesses sized and adapted to receive upwardly-projecting features so that, when the mask is placed in position over the to-be-exposed and etched surface, the lower surface of the mask is in direct co... | 10/27/1998 |
| 5818365 | Serial to parallel conversion with phase locked loop A serial to parallel conversion circuit uses a dynamic shift register in a phase locked loop for an index to access a parallel holding register. The composite input signal includes serial data to be sampled and a synchronizing signal at an integer factor ... | 10/06/1998 |
| 5817373 | Dry dispense of particles for microstructure fabrication A substrate is placed on a charging surface, to which a first voltage is applied. Etch-resistant dry particles are placed in a cup in a nozzle to which a second voltage, less than the first voltage, is applied. A carrier gas is directed through the nozzle... | 10/06/1998 |
| 5814946 | Semiconductor junction breakdown tap for a field emission display A field emission display includes a discrete storage capacitor coupled between a column line and a reference potential. The display also includes a discharge circuit coupled between a transmission line tap and the storage capacitor. The discharge circuit ... | 09/29/1998 |
| 5807154 | Process for aligning and sealing field emission displays According to two aspects of the invention, a FED and a process for making a FED are provided which effectuate more accurate and efficient sealing between a faceplate and a backplate assembly, with more accurate and efficient sealing between the faceplate ... | 09/15/1998 |
| 5804910 | Field emission displays with low function emitters and method of making low work function emitters A cold cathode structure, useful for field emission displays, is disclosed. A thin resistive silicon film is disposed on a glass substrate; conductive emitter tips are disposed on top thereof. An alloy of amorphous silicon and amorphous carbon is used for... | 09/08/1998 |
| 5801669 | High permeability tapped transmission line A transmission line includes a high permeability conductor. The high permeability conductor increases the inductance-per-length of the transmission line to reduce the propagation velocity along the line. The high permeability conductor supplements a high ... | 09/01/1998 |
| 5789859 | Field emission display with non-evaporable getter material The present invention provides an FED with a getter material deposited and activated on the substrates of the faceplate and the baseplate of the FED. In one embodiment of the invention, a large FED includes a faceplate, a baseplate, and an unactivated non... | 08/04/1998 |
| 5786232 | Multi-layer electrical interconnection methods and field emission display fabrication methods A flat-panel field emission display comprises a luminescent faceplate, a rigid backplate, and an interposed or sandwiched emitter or cathode plate. A dielectric connector ridge is screen-printed over the faceplate's rear surface. Upper and lower level con... | 07/28/1998 |
| 5783100 | Method of high density plasma etching for semiconductor manufacture An improved method of high density plasma etching for etching substrates such as semiconductor wafers is provided. The method includes controlling the ratio of ions to neutrals in a high density plasma using an ion filter located in the flow path of the p... | 07/21/1998 |
| 5776540 | Process for manufacturing a praseodymium oxide- and manganese oxide-containing baseplate for use in field emission displays A process for manufacturing a conductive and light-absorbing baseplate for use in a field emission display is disclosed. A surface of the baseplate is coated with a praseodymium oxide- and manganese oxide-containing layer having a resistivity that does no... | 07/07/1998 |
| 5773927 | Field emission display device with focusing electrodes at the anode and method for constructing same A field emission display device includes a baseplate having a set of field-induced electron emitters for each pixel in a display. Each set includes a plurality of emitters each carried by a supporting substrate and disposed within a respective aperture in... | 06/30/1998 |
| 5772488 | Method of forming a doped field emitter array According to one aspect of the invention, a field emission display is provided comprising: an anode; a phosphor screen located on the anode; a cathode; an evacuated space between the anode and the cathode; an emitter located on the cathode opposite the ph... | 06/30/1998 |
| 5766361 | Multiple level printing in a single pass A process is provided for forming a conductive line between a conductor and a spacer formed on a substrate of a field emission display. In one embodiment, the process performs the steps of disposing a screen between the substrate and a distributing member... | 06/16/1998 |
| 5762773 | Method and system for manufacture of field emission display High resolution color displays for field emission displays are formed by applying a grille to a screen layer, the grille having a set of holes formed therein exposing areas of the screen layer. A layer of photoresist is applied to the grille and the expos... | 06/09/1998 |
| 5759446 | Process for preparing a praseodymium-manganese oxide material for use in field emission displays A conductive, light-absorbing baseplate for use in a field emission display is disclosed. The interior surface of the baseplate is coated with a praseodymium-manganese oxide layer having a resistivity that does not exceed 1×105 Ω.multidot.cm.... | 06/02/1998 |
| 5760470 | Multi-layer electrical interconnection structures A flat-panel field emission display comprises a luminescent faceplate, a rigid backplate, and an interposed or sandwiched emitter or cathode plate. A dielectric connector ridge is screen-printed over the faceplate's rear surface. Upper and lower level con... | 06/02/1998 |
